According to the causes of risks: external risks and internal risks; According to the business risk function, it is divided into financing risk, investment risk and credit risk; Divided by asset content: liquidity risk and asset allocation risk; According to the nature of risk: static risk and dynamic risk; According to the object of risk damage: property risk, personal risk and liability risk; According to risk tolerance: acceptable risk and unacceptable risk; According to the degree of risk control: controllable risk and uncontrollable risk; According to the occurrence form of risks: potential risks and unexpected risks; According to the requirements of enterprise operational risk assessment, different classification methods can be selected to distinguish the assessment dimensions.